Please cite this article as: P.E. Kourouthanassis, P. Mikalef, I.O. Pappas, P. Kostagiolas, Explaining travellers online information satisfaction: a complexity theory approach on information needs, barriers, sources and personal characteristics, Information and Management (2017), http://dx.doi.org/10. 1016/j.im.2017.03.004 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.